4k@30Hz Wireless Display Transmission 165FT/50MGKCast has a resolution of 720P, 1080P, and 4K@30Hz, and the signal is strong enough that the transmission range is up to 165FT. Suitable for casting Netflix, Disney+, YouTube, etc. NOTE: No need to power the TX USB-C connector. 2-in-1 Interface of Transmitter GKCast transmitter widely supports HDMI and USB C devices and is compatible with all mainstream operating systems, including Windows/MacOS/iOS/Android. NOTE: Ensure your USB C devices support 'DP Alt Mode'. Support 2-to-1 Split-Screen GKCast supports up to 2 display sources in a split-screen to facilitate content comparison. Easy and efficient for presenting any content at business meetings or multimedia education. Plug and PlayGKCast wireless display kit is truly auto-paired. No APP, WIFI, or Bluetooth is required. Pocket SizeGKCast kits are lightweight and perfect for on-the-go use, ideal for business conferences, office meetings, and classroom presentations.